I took the plunge.It just arrived today.Time will tell if the Ti Nitide coating really offers the longevity they promise.
I know from experience that titanium nitride is excellent for wear resistance. It also has some lubricity properties that would be favorable for this application. Although there are other PVD coatings that would be better. I would like to see AlTiN with a molly coat , now that would be a good chain! Joe